22555401 has 16 divisors (see below), whose sum is σ = 32963328. Its totient is φ = 13605200.

The previous prime is 22555399. The next prime is 22555409. The reversal of 22555401 is 10455522.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22555401 - 2¹ = 22555399 is a prime.

It is a super-2 number, since 2×22555401² = 1017492228541602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22555409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5986 + ... + 8996.

It is an arithmetic number, because the mean of its divisors is an integer number (2060208).

Almost surely, 2^22555401 is an apocalyptic number.

It is an amenable number.

22555401 is a deficient number, since it is larger than the sum of its proper divisors (10407927).

22555401 is a wasteful number, since it uses less digits than its factorization.

22555401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 22555401 is about 4749.2526780537. The cubic root of 22555401 is about 282.5423269129.

The spelling of 22555401 in words is "twenty-two million, five hundred fifty-five thousand, four hundred one".